The Apple-provided NTFS driver can read/write to a BC/Windows partition without needing any third-party drivers. Check the "-o" option of the mount command.
mount -v
/dev/disk0s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
/dev/disk0s4 on /Volumes/BOOTCAMP (ntfs, local, read-only, noowners)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
Each OS X upgrade overwrites /etc/fstab (be aware that it may be deprecated in the future).
Please also see FSTAB solution for NTFS write stopped working? .
I have seen several instances of NTFS corruption because of the race between different drivers trying to control the file system. Frequent use of chkdsk is strongly recommended, if you use third-party NTFS drivers.